​python3下的多线程实例

本文的python版本：3.3.3

python的多线程代码网上到处都是，但是基于python3的不太好找，这里作者备份下最简单的3种实例。

python3的lib：

【 https://docs.python.org/3.3/library/threading.html#module-threading 】
【 https://docs.python.org/3.3/library/_thread.html#module-_thread 】

最简单的多线程

基于_thread

import _thread
import time

def hello(index, count):
    while count > 0:
        count = count - 1;
        time.sleep(1);
        print("hello from %d, count = %d"%(index, count));
        
if __name__=='__main__':
    _thread.start_new_thread(hello,(1,5));
    _thread.start_new_thread(hello,(2,8));

继承threading.Thread

import threading
import time

class Hello(threading.Thread):
        def __init__(self,threadname, count):
                print("Hello Thread Init");
                threading.Thread.__init__(self,name = threadname)
                self.count = count;
        def run(self):
                while self.count > 0:
                        self.count = self.count -1;
                        time.sleep(1);
                        print("hello from %s, count = %d"%(self.name, self.count));

if __name__=='__main__':
        thread1 = Hello("A", 5);
        thread2 = Hello("B", 8);
        thread1.start();
        thread2.start();

使用threading.Thread构造函数

import threading
import time

def hello(index, count):
    while count > 0:
        count = count - 1;
        time.sleep(1);
        print("hello from %d, count = %d"%(index, count));
        
if __name__=='__main__':
		thread1 = threading.Thread(target=hello,args=(1, 5));
		thread2 = threading.Thread(target=hello,args=(2, 8));
		thread1.start();
		thread2.start();

多线程同步及队列

暂时先略过。。